1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54490ecd217d5a9d3179ca468060ca1bec6991902bf2c0382fd07eb274c26dd0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7226b16-c829-4172-a138-c04bf4ee0cb4.json and https://artists.proofprofile.net/proofs/artist/b7226b16-c829-4172-a138-c04bf4ee0cb4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88e33fe697a7d108fe44e2e0ad71bd762e4daa83e2c9027d250ceff9f1991eb. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB45A1801122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5432144d5461a53767fb536ebfbac030099ed1a29509082c89b41eb72d20aa1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBKS1100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e8f9a606f4af2a5a494b076351e98f9b773cf8ebccbc5cd47e70c568af8de1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYE0500178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0599e8a50cb7fb76813ff7b5693c83af90ebfad4bcc3fa51c89fdef6cc54c5d3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USD8D1969006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530d69276ae348266972de40be65f4afd9f028e82b2045e5b88cdc3b9a38d875. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK35D1500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4eb47e1b2301a5773abcf098fe453cb8f63431ffec6da98ce82ac119a67788b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1898986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e45c71c95155e028517da54e3231bfa6089e96a331dd6893424b90eea232b42. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZXT2351759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe988521b09291620c0888828f94764fcaff3df8bed6ed87ff14b95ed760fd978. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCFB1606303.
Chocolate (feat. Breakage, Roses Gabor & Ghetts) - Driis 7 Wallace Mix
Chocolate (Driis Remixes) (feat. Breakage, Roses Gabor & Ghetts)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2497549d8c3a3195fc6ef71c6907503bc33c094699015c96d7ef716d0fcc5a0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBARL1701992.
Chocolate (feat. Breakage, Roses Gabor & Ghetts) - Driis Sugar Zaddy Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a01049a8e2a026ecef4afcd985980f0e36d9c1165c176cbb44cfc806f6fac8. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBARL1701994.
Chocolate (feat. Breakage, Roses Gabor & Ghetts)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c75b23fc3960258927b5c86ad5e63be9f83c8e13f9f20796289d421cd9ac7f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBARL1701910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7689043f708f5227dd41c4035876ddf0fb1afa70a19360be52e1690fe09df971. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACR1607040.